baber/WOPTO huggingface dataset:
Patent GB-628285-A (GB)
Title: Improvements in or relating to a burner
IPC: F23Q9/12
Filed: 1947-02-20
Abstract: 628,285. Lighting gas burners. WHEELCO INSTRUMENTS CO. Feb. 20, 1947, No. 4980. Convention date, Aug. 13, 1941. [Classes 75(i) and 75(iii)] A gas burner 3 is provided with a safety control device including a flame electrode 2 disposed in the flame path of the burner 3 and a pilot burner 4 and connected with a switch mechanism 20 which operates when the flame circuit is completed to energize a relay 22 for opening a switch means, a second relay 12 having an operating coil 17 which, when energized by closing a starting switch 10, closes a second switch means, a supplemental switch means closed by the energization of the relay 22, and connections for operating an electrically controlled fuel valve 6 to admit fuel to the burner only when the supplemental switch means and the second mentioned switch means are closed. The burner is started by closing the push button switch 10 to energize from the mains 18, the electrically operated pilot valve 7, and the ignition transformer 5 through contacts 26, 27 of the relay 22, and at the same time coil 17 is energized to close contacts 15, 16 and 13, 14 of the relay 12. A flame appears at the pilot burner which completes the circuit of the switch 20 so that the relay 22 makes contacts 24, 25 and 27, 28, and breaks contacts 23, 24 and 26, 27. The making of contacts 24, 25 energizes the main gas valve 6 through contacts 15, 16 of the relay 12, and the burner 3 is ignited from the pilot burner 4. Upon releasing the push button 10, the transformer 5 and the valve 7 are de-energized leaving the circuit maintained by the flame from the burner 3 impinging on the rod 2. Should flame failure occur the relay 22 is de-energized to break contacts 27, 28 and 24, 25 to de-energize the main fuel supply valve 6. If a leakage path exists between the flame rod 2 and the ground of a similar resistance to that of the flame the relay 22 is held closed, and depressing the push button 10 will not start the system because the contacts 26, 27 are broken. An alarm bell 11 may be provided, which is energized when the contacts 23, 24 and 26, 27 are made, to indicate audibly that a flame failure has occurred.
Patent GB-1495646-A (GB)
Title: Yarn spinning apparatus in an open-end spinning machine
IPC: D01H13/04
Filed: 1975-02-06
Abstract: 1495646 Open end spinning H HIRAI 6 Feb 1975 [12 Feb 1974] 5004/75 Heading DID Yarn is withdrawn from an open end spinning rotor along the rotor axis and through a navel 3 without deflection of the yarn at the navel outlet 12, passed for more than 90 around a single freely rotatable guide roller 14 and taken by a pair of delivery rollers 9, 10 towards a yarn winding unit.
Patent GB-573463-A (GB)
Title: Improvements in or relating to barrel mountings for automatic firearms
IPC: F41A21/48
Filed: 1941-04-17
Abstract: 573,463. Automatic guns. TEMPLE, G., SHEPHERD, R. V., and TURPIN, H. J. April 17, 1941, No. 5019. [Classes 92 (ii) and 119] The barrel B is floatingly mounted within the cylindrical gun casing A for free heat expansion and for ready removal. The barrel is reduced in diameter at its ends and mounted for free heat expansion in collars B<1>, B<2> attached to the casing A. The front collar B<1> carries a ferrule E for guiding the barrel and bolts E<2> permit of ready detachment of the ferrule and removal of the barrel. The ferrule carries a flared flash obscurer E<3> and a swivel E4 for the sling. Specifications 573,462 and 573,464 are referred to.
Patent GB-249985-A (GB)
Title: Improvements relating to loom shuttles
IPC: D03J5/24
Filed: 1925-02-24
Abstract: 249,985. Calvert, A., and Calvert, J. Feb. 24, 1925. Shuttles. - To prevent ballooning &c. a shuttle body is continued around and in proximity to the end of the skewer. For this purpose the slot in the shuttle is of keyhole section, the part A being wide enough to pass the skewer, and the part B of circular or other shape.
Patent GB-110494-A (GB)
Title: Improvements in Target Practice Apparatus for use with Small Arms.
Inventor: REARDON ROBERT EDWIN
IPC: F41J1/10
Filed: 1917-04-11
Abstract: 110,494. Reardon, R. E. April 11, 1917. Teaching rifle-shooting. - Relates to targetholdens for use with practice apparatus of the kind in which a rod contained in a tube inserted in the barrel of a small-arm is projected by a blow from the hammer or firing-pin to mark a target placed a few inches in front of the muzzle of the gun. According to the invention, the target-holder is provided with a casing containing pivoted pockets for dummy cartridges and spare targets. In the construction shown, the holder comprises a tubular upright A adapted to receive the marking-rod when it is out of use, a block D sliding on the upright A and adapted to receive a target card C, and a casing 26 containing twc pivoted pockets 18, 19 for spare targets and dummy cartridges.
Patent GB-750375-A (GB)
Title: Improvements in or relating to display devices
Inventor: RADCLYFFE ANTHONY ARNOLD ASCOU
IPC: A47F5/10
Filed: 1954-02-22
Abstract: 750,375. Display stands. WELLCOME FOUNDATION, Ltd. March 15, 1955 [Feb. 22, 1954], No. 5110/54. Class 3(2) A display stand comprises two sheets of cardboard 5, 6 which are hinged together and provided with registering slots 9 for the reception of retaining wires 8. Each wire 8 is preferably provided with knobs 11 and is composed of sections 13, 14. 15. 16; the intermediate section 13 being backed as shown by cardboard wedges 10 when the stand is assembled. If desired an extension piece 12 may be fixed to the sheet 5. In a modification (see Fig. 5, not shown), foldable flaps 17, having hooks 18 hinged thereto are stuck to the member 5 or 6 for engagement with the members 8
Patent GB-318580-A (GB)
Title: Process for the production of foils, films and the like
IPC: C08G12/12
Filed: 1929-02-15
Abstract: 318,580. Wolff & Co., and Weingand, R. Sept. 6, 1928, [Convention date]. Condensation products of urea or its derivatives with aldehydes.-The manufacture of films and the like from condensation products of urea or its derivatives with aldehydes is effected by applying a solution of the condensation product containing a known softening agent to a travelling base, solidifying the solution on the base, and removing the product from the base, the operations being carried out in the time that elapses between the production of a viscous initial solution and a product that is not superficially sticky. The softening agent, which may be glycerine, glycol, or methylcyclohexyl adipate, may be added to the initial solution after the condensation has begun, and the solidification of the film may be effected at 70-100‹ C.
Patent GB-723992-A (GB)
Title: Improvements relating to the production of grey cast iron
Inventor: STEVEN WILLIAM
IPC: C21C1/10
Filed: 1952-02-27
Abstract: A method of producing spheroidal graphite cast iron by means of magnesium in spite of the presence of detrimental elements comprises adding to the melt sufficient magnesium to produce a predominant amount of spheroidal graphite in the absence of detrimental elements and also a rare earth metal in amount between 0.005 and 0.02 per cent by weight of the molten iron.  The rare earth metal may be added as mischmetall before, after, or with, the magnesium.  The magnesium and the rare earth metal may be added together by the use of a perforated container holding magnesium in the form of chips not more than 0.06 inch in thickness and the rare earth metal, and plunging the container below the surface of the molten cast iron.  An alloy of magnesium and the rare earth metal may be used.  It is stated that 90 per cent of the graphite may be obtained in the spheroidal condition in the presence of lead, bismuth, thallium, or titanium. Specification 630,070 is referred to.
Patent GB-178254-A (GB)
Title: Improvements in and relating to photosensitive devices
IPC: H01H47/24
Filed: 1921-02-15
Abstract: 178,254. British Thomson - Houston Co., Ltd., (General Electric Co.). Feb. 15, 1921. Thermal switches.-A photo-sensitive switch, applicable for illuminating buoys at night, comprises a pair of bi-metallic strips 11, 12 one having a polished surface and the other blackened, contacts 13 on the strips being brought into engagemen when the apparatus is exposed to light, owing to unequal heating of the strips. Closure of the contacts energizes the device 17. The strips are carried on brackets on an insulating base 14 and are adjustable by screws 15.
Patent GB-588678-A (GB)
Title: Improvements in or relating to variable ratio power transmission apparatus
IPC: B62M9/04
Filed: 1945-03-02
Abstract: 588,678. Variable-speed gearing. FROST, E. A. [Representative of FROST, S. J.], and TWOSE, A. W. March 2, 1945, No. 5247. [Class 80 (ii)] In a two-speed gear, especially for bicycles, of the kind described in Specification 468,969, the cam plate and pawl mechanism is modified, the cam plate now driving the wheel hub directly through a fixed stop thereon for low speed, and being held in its inoperative position by direct spring action. As shown in the Figure, which is similar to Fig. 3 of Specification 468,969 but includes only the relevant parts, the cam plate 16 now has a recess 60 which is larger circumferentially than the fixed stop 61 with which it co-acts. The pawl 26 is modified to act only as the fixed wheel drive pawl, its tongue 29 now engaging directly the ratchet teeth of the wheel 18 (not shown) which are modified in shape to allow such a positive clutching action, whilst the cam stop 31 is now an eccentric pin. Both the pawl springs 30, 38 are now connected to the cam plate 16 and serve to hold it in its inoperative position when low speed is not engaged, the right-hand side of the stop 61 then abutting the recess 60. On bringing in the low-speed drive the cam plate 16 moves against the action of springs 30, 38, and acts through pins 27, 36 to disengage the pawls 26, 34 respectively and bring the left hand side of the recess 60 into driving engagement with the stop 61.
Patent GB-119193-A (GB)
Title: Improvements in Card Indexes.
Inventor: BRETTELL FREDERICK GILBERT
IPC: B42F17/18
Filed: 1918-03-26
Abstract: 119,193. Brettell, F. G., (Acme Card System Co.). March 26, 1918. Racks; fold-engaging files; cards.-In a card index of the type in which the cards are retained in a rack or frame by means of wires or bars which can be flexed to permit removal from the frame, the cards 5 are pivoted upon flexible wires 3 having spacing loops 6 engaging under flanges 2 of the frame 1, which is provided with a supporting-member 29 for the wires 3, having spring tongues 30 to press the part 29 firmly against the frame 1. The cards may have extensions 20 to enable matter to be typed as far as the perforated line 21, the part 20 being removed before the cards are threaded upon their supporting wires. Index tabs, Fig. 7, may be provided, engaging the sides of the frame.
Patent GB-569502-A (GB)
Title: Improved method of and apparatus for mining coal and other materials
IPC: E21F13/08
Filed: 1943-04-03
Abstract: 569,502. Conveyers. MAYOR & COULSON, Ltd., and MAVOR, J. B. April 3, 1943, No. 5377. [Class 78 (i)] A sectional conveyer A for use underground is moved bodily, i.e. without dismantling the sections, by means of a series of fluid-pressure rams D, F arranged at intervals along the length of the conveyer and bearing against props C. In the construction shown the rams are supplied with compressed air by a pipe-line E, and each ram D is secured to its prop by a clip 4 and has a movable cylinder 5 bearing against the conveyer. The end or driving unit B of the conveyer is mounted on transverse skids 3 and is moved laterally by the rams F ; this driving unit may be separated from the main length of the conveyer at the junction 8, or the conveyer may remain undivided for transverse movement.
Patent GB-490941-A (GB)
Title: Manufacture of azo-dyestuffs
Filed: 1937-02-23
Abstract: Azo dyes, insoluble in water, are made in substance, on a substratum or on the fibre by coupling the diazo compound of an amine of the formula <FORM:0490941/IV/1> where X = alkyl, alkoxy or halogen, with an arylide of 2 : 3-hydroxynaphthoic acid.  In examples: (1)-(2) bleached cotton piece goods are impregnated with the anilide or o-toluidide and printed with a paste containing 2 : 5-diethoxy- or dimethoxy-51-methyl-21 : 41-dinitrodiphenylamine - 4 - diazonium chloride, dried and passed through a hot sodium carbonate solution (blue black); (3) bleached cotton piece goods are padded with the a -naphthalide, passed through a solution of 2 : 5-diethoxy-21 : 41 - dinitro - 51 - chlorodiphenyl amine-4-diazonium chloride in formic acid and steamed (greenish blue black); (4) the diazo compound of (3) is coupled in substance with the 4-chloro-2-methylanilide.  A table of further combinations is given.  According to the Provisional Specification diazo compounds of amines of the formula <FORM:0490941/IV/2> wherein X and Y, which may be the same or different, stand for alkoxy, aryloxy or aralkyloxy and Z = alkyl, alkoxy, halogen or hydrogen are used.  Specifications 329,960, [Class 2 (iii)], and 377,207 are referred to.
Patent GB-413422-A (GB)
Title: Improvements in chain shifting devices for cycles
IPC: B62M9/124
Filed: 1933-02-23
Abstract: 413,422. Variable-speed chain gearing. RAIMOND, A., 73, Rue Logier, St. Etienne, Loire, France. Feb. 23, 1933, No. 5487. [Class 80 (ii).] In variable-speed chair gearing for cycles, of the type in which the chain is adapted to be moved laterally into engagement with any one of a series of sprockets of different sizes on the wheel hub, a spring. urged chain-tensioning arm 20 having a guide sprocket 25 is pivotally mounted on a carrier 11, which is fitted with a freely - mounted chain-shifting sprocket 22 and is slidably but non- rotatably mounted on a sleeve 9 fixed to the cycle frame, as by nuts 10 engaging a bracket 7 on the chain stay. The carrier 11 is provided with a peg 13 passing through longitudinal slots 12 in the sleeve 9, and the sliding movements are effected by means of a cable 17 and a return spring 14. The cable 17 passes around a pulley 18 mounted in a bracket 19, carrying a tubular shank 15 fitting into a bore in the end of the sleeve 9. The arm 20 is acted on by a tension spring 27 connected to the cycle frame.
Patent GB-563897-A (GB)
Title: Improvements in or relating to methods of, and apparatus for manufacturing manure
IPC: C05F7/00
Filed: 1942-04-24
Abstract: 563,897. Manure. MITCHELL ENGINEERING, Ltd., and BULLOUGH, C. C. April 24, 1942, Nos. 5553 and 7296. [Class 111] A residue obtained from refuse by screening preferably after mechanical reduction is formed into a porous filtering mass supported on a drained floor and fed with sewage sludge, whereby the surplus liquid drains away and both the refuse and the sludge are composted. " Refuse " includes mixtures which may contain, in addition to house refuse, such materials as fruit pulp, straw, slaughter house waste, vegetable waste, sawdust, &c. The coarser and finer components of the waste may be treated separately or together, and if separated may be re-mixed during treatment. As shown in Fig. 1, retuse 12 passes a rotary screen 10 and the residue is fed by elevator 22 to reducing device 36 and then to the cell 42 having an under-drained floor 44. Sludge is supplied to the bed by pipe 58. 50 is a levelling device comprising scrapers on an endless belt. The coarser fraction passing through screen 10 falls on a garbage extractor 66 which delivers coarse impurities such as coal to hopper 72 ; the organic matter passes to hopper 76 from which it may be returned to the main body, either before or after the reducing stage, by elevator 84, or passed to either of two beds 94, 116, similar to the bed 42. The finer fraction removed by screen 10 may be fed to a fourth bed 128. Specifications 490,426, 500,548, [Group XVIII], and 521,894 are referred to.
Patent GB-537368-A (GB)
Title: Improvements in and relating to welt turning mechanism in straight bar knitting machines
IPC: D04B11/32
Filed: 1939-11-09
Abstract: 537,368. Knitting-machines. SEAL & TURNER, Ltd. (Maschinenfabrik Einsiedel Ges.). Nov. 9, 1939, No. 5577/41. Divided out of 537,336. [Class 74 (ii)] A welt is turned in a straight-bar machine employing a welt hook 15 for each needle space, by engaging the welt hooks with the thread of the initial welt course while the thread is still engaged by all the needles 10, disengaging the thread from every second needle, retracting the welt hooks from the needles while knitting proceeds, and subsequently advancing the welt hooks to restore the loops to the needles. Points 21 may be employed for pressing the beards of the spaced needles for disengaging the thread from these needles. Specification 537,336 is referred to.
Patent GB-430448-A (GB)
Title: Improvements in circuits for receiving electrical signals
IPC: H04B15/00
Filed: 1934-02-20
Abstract: 430,448. Valve detecting circuits. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, PANTON, R., c/o General Electric Co., Stoke, Coventry, and BLIGH, N. R., c/o General Electric Co., Wembley, Middlesex. Feb. 20, 1934, No. 5616. [Class 40 (v)] To eliminate hum due to stray capacities in an indirectly heated grid leak detector, a potentiometer R1, R2, Fig. 1, is shunted across the heater supply leads 7, 8 the slider being connected to the lower end of the grid leak R3. By this means the grid leak, shunted by the grid cathode capacity C3 forms one diagonal of a bridge as shown in Fig. 2. One part of the potentiometer may be constituted by the heater element of the valve (Fig. 3, not shown). The arrangement is such that the connection from the cathode to each end of the input circuit includes an " essential impedance." Specification 340,396 is referred to.
Patent GB-1410391-A (GB)
Title: Method of forming a stretchable tubular packaging material
IPC: B29C69/00
Filed: 1973-02-05
Abstract: 1410391 Making packaging material CELLUPRODUCTS CO 5 Feb 1973 [3 Feb 1972] 5692/73 Heading B8C [Also in Divisions B5 and C3] A method of producing resilient readily stretchable tubes for receiving and packaging articles therein, comprises forming a web of flexible foam material (Fig. 7) into a tube (Fig. 8) and, either before or after the tube is formed, slitting the material in a pattern of spaced-apart rows of spaced incisions with the incisions and the rows extending substantially parallel to the axis of the tube and with the incisions in adjacent rows in staggered relationship, so that the tube may be stretched radially to receive therein an article of greater cross-sectional area than the initial internal cross-sectional area of the tube and the tube then will recover into substantial conformance to the size and shape of the article (Fig. 9). As shown in Figs. 3 and 4, the web material is fed from a web supply to tubeforming means 11 comprising first and second forming units 21, 22 each consisting of upper and lower U-shaped members 11a, 11b which are adjustable relative to a frame member 11d by screws 11e, 11g whereby to vary the size of tube to be formed. Opposing edges of the web material are maintained in close proximity by interconnected saddle members 11h which are also connected to one of the members 11b. An electric heating means 23 comprises a narrow heating element 23a which projects downwardly into the path of travel of the web for fusing together the abutting edges thereof. The formed tube then passes between a pair of rollers 12a, 12b, the roller 12a being provided with cutting blades 12c by which incisions 25 are formed in the flattened tubes. A spreading member 26 is positioned within the tube, which thereafter passes between a pair of presser rollers 26a, 26b and on to a take up roller 13, the rollers 26a, 26b preventing the member 26 from being carried forward by the tube. The abutting edges of the web may be secured by adhesive in the case where the material is other than polyethylene foam.
Patent GB-567839-A (GB)
Title: Improvements in date indicators
IPC: G04B19/253
Filed: 1943-04-09
Abstract: 567,839. Date indicators. SMITH, J. April 9, 1943, No. 5707. [Class 106 (iv)] A day-name disc 1 having 28 teeth is moved one step each day either by hand or by clockwork. The disc 1 gears with a date-figure disc 2 having 27 fixed teeth and four further teeth on a quadrant 8 pivoted to the disc 2 at 9. Towards the end of each month a roller 10 on the quadrant 8 engages a fixed cam 13 whereby the quadrant is held in such a position that the quadrant teeth form a continuation of the teeth fixed to the. disc 2. When the roller 10 leaves the cam 13 the position of the quadrant is maintained by the engagement of the roller with the edge 14 of a month-name disc 3. The month-name disc 3 has 48 slots 16, the length of the edge between any two slots corresponding to the length of one month in a four-year cycle. When the date-figure disc 2 has turned a number of steps corresponding to the length of the month concerned, the roller 10 moves off the edge 14 of the month-name disc 3 into a slot 16. A spring 15 then swings the quadrant 8 to disengage the quadrant teeth from the day-name disc 1 and to rotate the date-figure disc 2 until the first fixed tooth thereon engages the disc 1. The disc 2 then show the indication " 1." The roller 10, by engagement with the slot 16, rotates the month-name disc 3 one step, the roller first depressing a detent lever 23 to remove a part 25 of the lever from engagement with the month-name disc. The month-name disc 3 has pins which drive a year-number disc 4.
Patent GB-348243-A (GB)
Title: Process for the manufacture of valuable products from coal and the like carbonaceous materials
IPC: C10G1/08
Filed: 1930-02-20
Abstract: Coal and the like carbonaceous materials, asphalts, petroleum products, tars, phenols and the like are treated with hydrogenating gases at elevated temperature and pressure in the presence of a catalyst obtained by treating metal oxides or hydrated metal oxides with sulphuretted hydrogen prior to the hydrogenation treatment. Part of the treatment with sulphuretted hydrogen may be carried out at 200-300 DEG  C.  The hydrogenation treatment may be such that splitting of the molecules does or does not occur.  Examples are given of the preparation of catalysts from cobalt and iron oxides, and of the treatment of brown coal and crude cresols with these.ALSO:Phenols, cresols, and the like are treated with hydrogen, or gases containing or yielding hydrogen, at elevated temperatures and pressures in the presence of a catalyst formed by treating metal oxides or hydrated metal oxides with sulphuretted hydrogen prior to the hydrogenation.  The treatment with hydrogen sulphide may be carried out, in part, at 200-300 DEG  C.  The preparation of a catalyst from cobalt oxide, and its use in the production of hydrocarbons from crude cresols, is described.